CONICAL-SPHERICAL THREAD FORM FOR VARIABLE ANGLE LOCKING SYSTEMS
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United States of America Patent
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Issued Date -
Oct 31, 2013
app pub date -
Apr 26, 2012
filing date -
Apr 26, 2012
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Abstract
A variable angle locking screw comprising a head portion having helical threads, the head portion including a first section having a shape that is substantially spherical and a tapered second section having a shape that is substantially conical, and an elongated threaded shaft portion extending from the head portion.
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